Weekly Wonders I have put the dates of when I expect you to learn the Weekly Wonders. If there is a test scheduled for the week you are still expected.

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Presentation on theme: "Weekly Wonders I have put the dates of when I expect you to learn the Weekly Wonders. If there is a test scheduled for the week you are still expected."— Presentation transcript:

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Weekly Wonders I have put the dates of when I expect you to learn the Weekly Wonders. If there is a test scheduled for the week you are still expected to learn the Weekly Wonder. Matter of fact, the Weekly Wonder may be on that test. For example, a test on September 13 th, could have questions based on the Weekly Wonder for September

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August Flagella-long whip-like projections responsible for the movement of some animal, bacterium and protist cells Cell Membrane-aka plasma membrane- structure that surrounds the cell and regulates what enters and exits the cell

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September 9-13

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September Scientific Method 1. make an observation 2. research the topic 3. form a hypothesis 4. set up a controlled experiment 5. record and analyze the results 6. draw a conclusion

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September ProkaryotesEukaryotes Oldest and least developed or simpleMore recent (still old) and more developed or complex DNA floats in cytoplasmDNA condensed into chromosomes in nucleus Single-celled organismsSingle-celled or most likely multicellular No membrane-bound organellesMembrane-bound organelles (so can specialize)

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September 30-October 4 Characteristics of living things 1. made of one or more cells 2. grows and develops 3. reproduces 4. responds to stimuli (reacts) 5. requires energy 6. maintains homeostasis 7. adapts over time (evolves) 8. displays organization

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October 7-11 DNARNA A-T; T-AA-U; U-A G-C; C-G

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October Cell Theory 1.All living things are composed of one or more cells 2. Cells are the basic unit of structure and function in an organism (basic unit of life) 3. Cells come only from the reproduction of other cells

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October 28-November 1 Symbiosis-relationship that has developed between two or more species that are in direct contact Type1 st Species2 nd Species CommensalismBenefitsUnaffected MutualismBenefits ParasitismBenefitsHarmed (not killed)

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November Golgi Apparatus-modifies, collects, packages and distributes molecules (proteins) within or outside the cell Cilia-short hair-like projections responsible for the movement of animal cells or protists Cell Wall-rigid layer that surrounds cell membrane, gives protection, support and shape to the cell, present in plants, algae, fungi and most bacteria

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November 18-22

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December 2-6 Ribosomes- sites of protein synthesis,, some are on ER and some float in the cytoplasm Endoplasmic Reticulum-ER-complex, extensive network that transports materials throughout the inside of the cell

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December 9-13 MitosisMeiosis Divides once, results in two cellsDivides twice, results in four cells Occurs in somatic cells (body cells)Occurs in gametes (sperm or ova) Takes place throughout the organisms lifetime Takes place only at certain times in the life cycle Forty six chromosomes in each cellTwenty three chromosomes in each cell Involved in asexual reproductionInvolved in sexual reproduction Each cell is genetically identicalEach cell is genetically unique

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December Nucleus- contains the chromosomes which are composed of DNA, functions in the genetic control of the cell Mitochondria-sites of cellular respiration, the process that supplies the cell with energy (ATP)

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January 6-10

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January Lysosome-organelle that contains enzymes that digests other organelles and material Vacuole-organelle that stores salts, carbohydrates, and proteins, much bigger in plant cells than in animal cells Chloroplast-organelle that converts sunlight into organic compounds, found primarily in plants

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February Diffusion-movement from molecules from an area of high concentration to an area of low concentration Facilitated Diffusion- transporting substances across a cell membrane due to a concentration gradient using carrier proteins (diffusion with doors)

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February 24-28

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March Autotroph-uses sunlight or chemical bond energy to make organic compounds Heterotroph-must consume food in order to have organic compounds

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March 24-28

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March 31- April 4 Genotype-the genetic make-up of an organism Phenotype-the appearance of an organism